Why do powdered foods (powdered donuts, cornstarch, etc) feel cold when you touch them or eat them despite not being cold?
In: Other
It has to do with heat displacement. When you touch a regular solid surface you’re touching one object which holds temperature well (in heat it holds heat, in cold it hold cold). When it comes to powdered donuts, they are covered in millions of tiny surfaces each of which can hold heat for a very little time due to its small size. The powdered sugar is basically a heatsink. It feels cold because it is generally going to be colder than your body temp as a normal donut would stay about ambient room temp but these millions of tiny surfaces are colder.
Tldr: it feels colder because it IS colder.
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